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WO2015096065A1 - Procédé et appareil d'envoi d'informations - Google Patents

Procédé et appareil d'envoi d'informations Download PDF

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Publication number
WO2015096065A1
WO2015096065A1 PCT/CN2013/090431 CN2013090431W WO2015096065A1 WO 2015096065 A1 WO2015096065 A1 WO 2015096065A1 CN 2013090431 W CN2013090431 W CN 2013090431W WO 2015096065 A1 WO2015096065 A1 WO 2015096065A1
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WO
WIPO (PCT)
Prior art keywords
station
frame
sending
time period
reserved
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2013/090431
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English (en)
Chinese (zh)
Inventor
李云波
马驰翔
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huawei Technologies Co Ltd
Original Assignee
Huawei Technologies Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Priority to PCT/CN2013/090431 priority Critical patent/WO2015096065A1/fr
Priority to CN201380081853.6A priority patent/CN105874847B/zh
Publication of WO2015096065A1 publication Critical patent/WO2015096065A1/fr
Priority to US15/170,670 priority patent/US20160295612A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0808—Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA]
    • H04W74/0816—Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA] with collision avoidance
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/002—Transmission of channel access control information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0808—Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/10—Small scale networks; Flat hierarchical networks
    • H04W84/12—WLAN [Wireless Local Area Networks]

Definitions

  • the embodiments of the present invention relate to communication technologies, and in particular, to a method and an apparatus for transmitting information.
  • CSMA/CA Carrier Sense Multiple Access with Collision Avoidance
  • CSMA/CA Carrier Sense Multiple Access with Collision Avoidance
  • CSMA/CA Collision Avoidance
  • a mechanism for reserving the channel by setting a Network Allocation Vector (NAV) is introduced.
  • the NAV is used to specify how long the transmission station is expected to occupy the channel, and the NAV-set site is specified in the NAV. It is necessary to remain silent during the time period to ensure that the two stations can communicate without interference during this time period.
  • the prior art sets NAV for all stations around the transmitting end and the receiving end by means of Request to Send/Clear to Send (RTS/CTS) frame interaction, and reserves a certain period of time from the current frame. Come down. When the data has been sent, but there is still time left in the reserved time, the remaining reserved time can be released by sending a Contention free-end (CF-end) frame.
  • RTS/CTS Request to Send/Clear to Send
  • the embodiments of the present invention provide a method and an apparatus for transmitting information, so as to implement flexible channel reservation and release in a scenario in which some data is discontinuously transmitted.
  • an embodiment of the present invention provides a method for sending information, including:
  • the sending station further includes r before sending the data in the at least two non-contiguous time periods
  • the sending station receives the response information of the reply of the target station, where the response information is used to indicate that the receiving station cannot initiate data transmission actively within the at least two non-contiguous time periods.
  • the indication information is sent by using one frame, where the frame includes information for indicating the at least two non-contiguous time periods; or
  • the indication information is sent by using at least two frames, where the at least two frames respectively include information indicating at least one of the at least two non-contiguous time periods, and the at least two frames The next frame in the frame is sent within the time period indicated by the previous frame.
  • the method further includes:
  • the transmitting station determines the length of the at least two non-contiguous time segments according to a period of data to be transmitted and an amount of data sent in each period.
  • the at least two non-contiguous time periods are used for transmitting uplink data, or both are used for transmitting downlink data, or partially for transmitting uplink data and partly for transmitting downlink data.
  • an embodiment of the present invention provides a method for sending information, including:
  • the target station receives the indication information sent by the sending station, where the indication information is used to indicate that the target station cannot initiate data transmission actively for at least two non-contiguous time periods;
  • the target station receives data transmitted by the transmitting station during the at least two non-contiguous time periods.
  • the method further includes:
  • the target station replies to the sending station with response information, where the response information is used to indicate that the receiving station cannot initiate data transmission actively within the at least two non-contiguous time periods.
  • the target station replies to the sending station with the response information, including: if the indication information is sent through a frame, the target station sends a response frame to the sending station; or
  • the target station sends at least two response frames correspondingly to the sending station.
  • the at least two non-contiguous time periods are used for transmitting uplink data, or both are used for transmitting downlink data, or partially for transmitting uplink data and partly for transmitting downlink data.
  • an embodiment of the present invention provides a method for sending information, including:
  • the sending station sends the indication information, where the indication information is used to indicate a reserved time period; the sending station sends data in the reserved time period;
  • the reserved time period is a continuous time period or at least two non-contiguous time periods.
  • an embodiment of the present invention provides a method for sending information, including:
  • the receiving station receives the indication information sent by the sending station, where the indication information is used to indicate a reserved time period;
  • the receiving station receives the release information sent by the sending station in the reserved time period, where the release information is used to instruct the receiving station to release at least part of the remaining time period of the time period segment.
  • the reserved time period is a continuous time period or at least two non-contiguous time periods.
  • an embodiment of the present invention provides a sending station, including:
  • the indication module is configured to send the indication information after the contention channel succeeds, where the indication information is used to indicate that the receiving station cannot initiate data transmission actively for at least two non-contiguous time periods; and the sending module is configured to: Data is sent in two non-contiguous time periods.
  • the sending station further includes:
  • a receiving module configured to receive response information of the target station reply, where the response information is used to indicate that the receiving station cannot initiate data transmission actively within the at least two non-contiguous time periods.
  • the indication information is sent by using one frame, where the frame includes information for indicating the at least two non-contiguous time periods; or
  • the indication information is sent by using at least two frames, where the at least two frames respectively include information indicating at least one of the at least two non-contiguous time periods, and the The latter of the at least two frames is transmitted during the time period indicated by the previous frame.
  • the sending station further includes:
  • a determining module configured to determine a length of the at least two non-contiguous time segments according to a period of data to be sent and an amount of data sent in each period.
  • the at least two non-contiguous time periods are used for transmitting uplink data, or both are used for transmitting downlink data, or partially for transmitting uplink data and partly for transmitting downlink data.
  • an embodiment of the present invention provides a target site, including:
  • the first receiving module is configured to receive the indication information sent by the sending station, where the indication information is used to indicate that the target station cannot initiate data transmission actively for at least two non-contiguous time periods;
  • a second receiving module configured to receive data sent by the sending station in the at least two non-contiguous time periods.
  • the target site further includes:
  • a replying module configured to reply to the sending station with response information, where the response information is used to indicate that the receiving station cannot initiate data transmission actively within the at least two non-contiguous time periods.
  • the replying module is specifically configured to: if the indication information is sent through one frame, send a response frame to the sending station; or
  • the sending station correspondingly transmits at least two response frames.
  • the at least two non-contiguous time periods are used for transmitting uplink data, or both are used for transmitting downlink data, or partially for transmitting uplink data and partly for transmitting downlink data.
  • an embodiment of the present invention provides a sending station, including:
  • An indication module configured to send indication information, where the indication information is used to indicate a reserved time period
  • a first sending module configured to send data during the reserved time period
  • the second sending module is configured to send the release information in the reserved time period, where the release information is used to instruct the receiving station to release at least a part of the remaining time period of the time period.
  • the reserved time period is a continuous period of time or at least two non-continuous period.
  • an embodiment of the present invention provides a receiving station, including:
  • the first receiving module receives the indication information sent by the sending station, where the indication information is used to indicate a reserved time period;
  • a second receiving module configured to receive, in the reserved time period, the release information sent by the sending station, where the release information is used to indicate that the receiving station releases the remaining time period of the time period At least part of the time period.
  • the reserved time period is a continuous time period or at least two non-contiguous time periods.
  • the sending station sends the indication information indicating that the receiving station cannot initiate data transmission actively for at least two non-contiguous time periods, and sends data in the at least two non-contiguous time periods, thereby implementing
  • channel reservation can be flexibly reserved for multiple periods of discontinuous time periods through one channel competition, which saves competition overhead and saves channel resources.
  • Embodiment 1 is a schematic flowchart of Embodiment 1 of an information sending method according to the present invention
  • Embodiment 1 is a first schematic diagram of Embodiment 1 of an information sending method according to the present invention
  • Embodiment 3 is a second schematic diagram of Embodiment 1 of an information sending method according to the present invention.
  • FIG. 4 is a schematic diagram 3 of Embodiment 1 of an information sending method according to the present invention.
  • FIG. 5 is a schematic diagram 4 of Embodiment 1 of an information sending method according to the present invention.
  • FIG. 6 is a schematic diagram 5 of Embodiment 1 of an information sending method according to the present invention.
  • Embodiment 7 is a schematic flowchart of Embodiment 2 of an information sending method according to the present invention.
  • Embodiment 8 is a schematic flowchart of Embodiment 3 of an information sending method according to the present invention.
  • FIG. 9 is a first schematic diagram of Embodiment 3 of a method for transmitting information according to the present invention.
  • FIG. 10 is a second schematic diagram of Embodiment 3 of the method for transmitting information according to the present invention.
  • 11 is a schematic flowchart of Embodiment 4 of the method for transmitting information according to the present invention
  • Embodiment 12 is a schematic flowchart of Embodiment 5 of the method for transmitting information according to the present invention.
  • FIG. 13 is a schematic diagram 1 of Embodiment 5 of the method for transmitting information according to the present invention.
  • FIG. 14 is a schematic diagram 2 of Embodiment 5 of the information sending method of the present invention.
  • Embodiment 6 is a schematic flowchart of Embodiment 6 of the method for transmitting information according to the present invention.
  • Embodiment 7 is a schematic flowchart of Embodiment 7 of the method for transmitting information according to the present invention.
  • Embodiment 8 is a schematic flowchart of Embodiment 8 of the method for transmitting information according to the present invention.
  • 21 is the fourth embodiment of the transmitting station of the present invention.
  • 22 is the target station embodiment 1 of the present invention.
  • 25 is the fourth embodiment of the target site of the present invention.
  • 26 is the fifth embodiment of the transmitting station of the present invention.
  • 31 is the second embodiment of the receiving station of the present invention.
  • FIG. 1 is a schematic flowchart of Embodiment 1 of a method for sending information according to the present invention. As shown in FIG. 1 , the method in this embodiment may include:
  • Step 101 Send a station competition channel.
  • channel resources are shared between multiple sites through a CSMA/CA contention mechanism, that is, when a station needs to transmit data, it needs to contend for a channel.
  • the basic principle of the CSMA/CA competition mechanism is that each station listens to the free/busy state of the channel before sending data. Only after the channel is idle for a certain length of time (for example, DIFS), the backoff count is started. Ways can reduce collisions. The value of the backoff count is randomly selected from the backoff window. When the channel starts to be busy again before the value of a backoff counter is reduced to zero, the backoff count will be suspended. Wait for the next channel idle for a certain period of time before continuing the backoff count. Repeat the above process until the backoff counter value is reduced to zero. That is, when the backoff count ends, it means that the transmitting station competes for a successful channel.
  • Step 102 The sending station sends the indication information after the contention channel succeeds, where the indication information is used to indicate that the receiving station cannot initiate data transmission actively for at least two non-contiguous time periods.
  • the indication information may be sent by using one frame, where the frame includes information for indicating the at least two non-contiguous time segments; or, the indication information is sent by using at least two frames, where The at least two frames respectively include information indicating at least one of the at least two non-contiguous time periods, and the next one of the at least two frames is a time indicated by the previous frame Sent within the segment.
  • the indication information is sent, and the indication information is used to indicate that the receiving station (ie, the station that receives the indication information) cannot initiate data transmission actively for at least two non-contiguous time periods.
  • the indication information may be a reserved frame, such as an RTS frame or a CTS-to-sdf frame or a data frame, where the MAC header of the reserved frame carries a field for setting a NAV, for example, a Duration field.
  • the indication information may be sent by using one frame, where the frame includes information for indicating the at least two discontinuous time segments; or, the indication information is sent by using at least two frames, where And the at least two frames respectively include information indicating at least one of the at least two non-contiguous time segments, and the next one of the at least two frames is indicated by the previous frame Sent during the time period.
  • the first implementation manner is: when the indication information is sent by using a reserved frame, the duration field carried in the MAC header of the reserved frame may be one or more, when carrying a Duration field The duration field corresponds to at least two different starting moments, that is, the reserved frame includes information for indicating the at least two non-contiguous time segments.
  • the indication message may be When the at least two reserved frames are sent, the Duration field carried in the MAC header of the reserved frames may be one or more, that is, the at least two reserved frames respectively include the at least two Information of at least one of the non-contiguous time periods, and the latter one of the at least two reserved frames is transmitted within a time period indicated by the previous reserved frame.
  • the reserved frame is configured to indicate that the receiving station that receives the reserved frame cannot actively initiate data transmission for at least two non-contiguous time periods, thereby successfully reserving at least two non-contiguous time segments, where
  • the receiving site includes: a target site (a site where the transmitting site is to perform data transmission) and a non-target site (a receiving site other than the target site).
  • the non-target station sets the duration indicated by the duration fields to a NAV value, and ensures that the at least two non-contiguous time periods (ie, the NAV time) are not actively performed. Any transmission, even if the channel is idle, can not be sent.
  • the NAV time period is called a transmission opportunity (TXOP), and the site that successfully sets NAV for other sites is called a transmission opportunity holder (TXOP holder).
  • TXOP transmission opportunity
  • TXOP holder transmission opportunity holder
  • the reservation The time segment information can be obtained according to the actual situation information. For example, for the periodic service, it can be determined according to information such as the required reserved time length in each cycle, and the uplink and downlink services can be determined according to the known division method in the uplink and downlink services. The information such as the length of the reserved time required during the line period is determined, and some information can be determined according to known statistical summaries, and the information such as the reserved time period will be determined.
  • the sending station sends an indication message through a reserved frame
  • the reserved frame may adopt different frame formats, for example, “start time 1+ duration 1+ start time” 2+ duration 2+...+starting time n+ duration n", or "starting time 1 + end time 1 + start time 2+ end time 2+... + start time n + end time n", etc. Format, the n can be determined according to a specific actual situation, wherein the time information is obtained according to the actual application. Further, if the start time is omitted in the reserved frame format, the start time may be default, for example, starting from the end of the current frame.
  • the method for the sending station to send the indication message by using the at least two frames after the contention channel succeeds may include two methods of simultaneously multi-segment reservation and distributed multi-segment reservation.
  • the multi-segment reservation technology may simultaneously reserve a plurality of non-reserved frames by the transmitting station after the contention channel succeeds, and send a reserved frame indicating that the receiving station cannot initiate data transmission actively for at least two non-contiguous time periods.
  • the step-by-step multi-segment reservation technology may send, by the sending station, at least two intervals after the contention channel succeeds, indicating that the receiving station cannot initiate data transmission actively in at least one of the at least two non-continuous time periods a reserved frame, wherein the next reserved frame of the at least two reserved frames is sent within a time period indicated by the previous reserved frame.
  • FIG. 2 is a schematic diagram 1 of the first embodiment of the information transmission method according to the present invention.
  • the RTS frame carries at least two Duration fields or one Duration field in the MAC header of the RTS frame but corresponds to a plurality of different starting moments, and the field is used to set the NAV, that is, the RTS frame is used to indicate that the receiving station is at least Data transmission cannot be initiated actively during two non-contiguous time periods.
  • the duration indicated by the Duration fields is set to the NAV value, and at least two non-contiguous ones are set. No transmission is performed inside the time period (ie, during the NAV time), and it is not possible to transmit even if the channel is idle.
  • FIG. 3 is a schematic diagram 2 of the first embodiment of the information transmission method according to the present invention.
  • an RTS frame is sent, and a Duration field is carried in the MAC header of the RTS frame.
  • the field is used to set the NAV.
  • the RTS frame is used to indicate that the receiving station cannot initiate data transmission during the time period.
  • the target station sets the duration indicated by the Duration field to the NAV value, and ensures that no transmission is performed within the set time period (ie, the NAV time).
  • the setting of the next reserved time may be performed within the reserved time, thereby continuously reserving more time periods.
  • FIG. 4 is a schematic diagram 3 of Embodiment 1 of the information transmission method of the present invention.
  • the first reserved frame is used to indicate that the receiving station is at least two discontinuous. The data transmission cannot be initiated actively during the time period.
  • the second reserved frame is sent during the time period indicated by the first reserved frame to indicate that the receiving station cannot initiate data transmission within a period of time.
  • an RTS frame is first sent, and two Duration fields are carried in the MAC header of the RTS frame, and the field is used to set the NAV.
  • the frame indicates that the receiving station cannot initiate data transmission actively for at least two non-contiguous time periods, that is, after the non-target station receives the frame, the duration indicated by the duration fields is set to a NAV value, and the location is guaranteed.
  • No transmission is performed within the time period (ie, the NAV time); then, another RTS frame is sent in the second time of the reservation, and a Duration field is carried in the MAC header of the RTS frame and the Duration is
  • the field includes a time period information, which is used to set the NAV, that is, the frame indicates that the receiving station cannot initiate data transmission actively during the time period, thereby implementing that the receiving station cannot initiate the initiative for at least two non-contiguous time periods. Data transmission, successfully reserved for at least two non-contiguous time periods.
  • the purpose of reserving the reserved frame that can be used to reserve at least two non-contiguous time periods after the success of one channel competition is to realize one time after one channel competition in some scenarios in which data is not continuously transmitted. At least two non-contiguous time periods can be reserved, thereby reducing the competition overhead.
  • the discontinuous transmission of the data may occur in many scenarios.
  • the two technical scenarios of the periodic service and the uplink and downlink communication are taken as an example to further explain the foregoing technical solution.
  • the method further includes:
  • the sending station determines the length of the at least two non-contiguous time segments according to a period of the service data to be sent and an amount of data sent in each period.
  • the sending station determines the length of the time period that needs to be reserved in each period according to the period of the service data to be sent and the amount of data sent in each period, so as to determine the next time when the reserved frame is sent.
  • the reserved time period information is written into the reserved frame, so that multiple time periods are reserved.
  • the transmitting station sends a channel reserved frame after the contention channel succeeds, and the channel reserved frame may adopt different frame formats as described above, for example, "cycle length + number of cycles" + start time + length of reserved time in each cycle.”
  • the communication time is divided into uplink and downlink phases in order to reduce cross interference between uplink and downlink between different base station subsystems (BSSs).
  • BSSs base station subsystems
  • the uplink and downlink time periods can be reserved at the same time.
  • an access point AP
  • a part or all of the time of the uplink and the downlink is reserved, that is, the at least two non-contiguous time periods in the step 102 are used for transmitting uplink data, or both are used for transmitting downlink data, or partially for transmitting uplink data. Partially used to transmit downstream data.
  • the communication time is divided into the uplink and downlink phases, it can be regarded as having a fixed period, and therefore, it can be regarded as a special case in the periodic service scenario. According to the actual situation, it is judged that only the transmission uplink data needs to be reserved, or only the transmission downlink data needs to be reserved, or part of the transmission uplink data and the partial transmission downlink data need to be reserved, so that the channel reservation frame includes the corresponding reserved data. information.
  • FIG. 5 is a schematic diagram 4 of the first embodiment of the information transmission method according to the present invention.
  • the time interval in which only two uplink and downlink discontinuities are reserved is taken as an example.
  • the RTS frame is sent after the backoff count is completed.
  • the MAC header of the RTS frame carries two Duration fields. This field is used to set the NAV.
  • the duration indicated by the Duration field is set to the NAV value, and it is guaranteed that no transmission will be made within the two non-contiguous time periods (ie, the NAV time), even if the channel is idle.
  • FIG. 6 is a schematic diagram 5 of Embodiment 1 of the information transmission method of the present invention, as shown in FIG.
  • a continuous time period is used.
  • an RTS frame is sent first, and a Duration field is carried in the MAC header of the RTS frame, and the field is used to set the NAV, that is, the channel.
  • the reserved frame is used to reserve a time period in the uplink communication, that is, an uplink period (UL period), so that the non-target station receives the channel reservation frame, and sets the duration indicated by the duration field to NAV value, and ensure that no transmission is performed within the set time period (that is, the NAV time); then, in the reserved time, the downlink communication reservation time is set according to the above method, that is, the downlink segment (Downlink period, referred to as DL period).
  • the foregoing technical solutions of the present embodiment are further explained by taking the typical scenarios of the periodic service and the uplink and downlink communication as an example. For other discontinuous transmission scenarios, the foregoing method may be used to implement a multi-segment reservation after a competition. Technology, no longer repeat here.
  • Step 103 The sending station sends data in the at least two non-contiguous time periods.
  • the sending station sends an indication message after the contention channel succeeds, and the indication message is used to indicate that the receiving station cannot initiate data transmission actively for at least two non-contiguous time periods, that is, setting a NAV to the non-target station,
  • the NAV-enabled station is kept silent during the NAV period, thereby ensuring that other stations do not interfere with the data transmission of the transmitting station during at least two non-contiguous periods of the reservation.
  • the method further includes: the sending station receiving response information of the target station reply, where the response information is used to indicate the receiving station Data transmission cannot be initiated actively during the at least two non-contiguous periods of time.
  • the sending station receives the response information that is returned after the target station correctly receives the channel reserved frame sent by the sending station
  • the response information may be a CTS frame corresponding to the RTS frame, a response frame, such as an ACK frame, corresponding to the data frame, where the MAC header of the response frame also carries a Duration field, and the Duration field and the Duration field for setting the NAV carried in the MAC header of the reserved frame sent by the sending station according to the
  • the channel reservation frame format may be the same or different but used to reserve the same time period, and the response frame may be used to indicate the receiving station (the station receiving the response frame) within the at least two non-contiguous time periods
  • the data transmission cannot be initiated actively, that is, the NAV is set for the receiving station of the response frame, so that all the stations except the sending station and the target station are set with the NAV, and the transmission is guaranteed within the reserved time period.
  • the site and the target site can communicate without interference.
  • the receiving station of the response frame may overlap with the receiving station of the reserved frame, but even if there is a repetition, the application can ensure that all stations except the sending station and the target station are set with NAV. Therefore, the embodiment is not limited herein.
  • the sending station sends the indication information indicating that the receiving station cannot initiate data transmission actively for at least two non-contiguous time periods, and sends data in the at least two non-contiguous time periods, thereby implementing
  • channel reservation can be flexibly reserved for multiple periods of discontinuous time periods through one channel competition, which saves competition overhead and saves channel resources.
  • FIG. 7 is a schematic flowchart of Embodiment 2 of a method for sending information according to the present invention. As shown in FIG. 7, the method in this embodiment may include:
  • Step 701 Send a station to contend for a channel.
  • Step 702 The sending station sends a channel reservation frame after the contention channel succeeds, where the channel reserved frame is used to reserve at least two non-contiguous time segments, so that the non-target of the channel reserved frame is received.
  • the station is unable to transmit data for the at least two non-contiguous time periods.
  • the sending station sends a channel reservation frame after the contention channel succeeds, and the channel reservation frame is used to reserve at least two non-contiguous time periods; or, the sending station is separated after the contention channel succeeds. Transmitting at least two channel reserved frames, wherein at least one channel reserved frame is used to reserve a time period or to reserve at least two non-contiguous time segments at a time, wherein at least one channel reserved frame is in front
  • a channel reserved frame is sent within a time period reserved and used to reserve a time period or to reserve at least two non-contiguous time periods at a time, and the reserved time periods are non-contiguous.
  • the channel reserved frame is sent, and the reserved frame of the channel may be an RTS frame, a CTS-to-self frame, a data frame, etc., and is carried in the MAC header of the reserved frame of the channel.
  • Set the NAV field such as the Duration field.
  • the channel reservation frame may be one or more.
  • the Duration field carried in the MAC header of the channel reservation frame may be one or more, where one In the Duration field, the duration field corresponds to a plurality of different starting moments.
  • the Duration field carried in the MAC header of the channel reserved frame may be one or more.
  • the channel reserved frame is used to reserve at least two non-contiguous time segments, so that the non-target station (receiving station other than the target station of the channel reserved frame) receives the channel reserved frame
  • the duration indicated by the Duration fields is set to a NAV value and is guaranteed to be internal to the at least two non-contiguous time periods (ie, within the NAV time) No transmission is made, even if the channel is idle.
  • the NAV period is called the Transmission opportunity (TXOP).
  • the site that successfully sets the NAV for other sites is called the Transmission opportunity holder (TXOP holder).
  • the information of the reserved time period can be obtained according to the information of the actual situation.
  • the periodic service it can be determined according to the information such as the length of the reserved time in each period, and the uplink and downlink services can be classified according to the known in the uplink and downlink services.
  • the method and the information such as the length of the reserved time required in the uplink and downlink time periods are determined, and some information can be determined according to known statistical summaries, and the information such as the reserved time period will be determined.
  • the transmitting station sends a channel reservation frame after the contention channel succeeds
  • the channel reserved frame can adopt different frame formats, for example, "start time 1 + duration 1 + start time 2+ duration 2+ ... + start time n + duration n", or "start time 1 + end time 1 + start time 2+ end time 2+ ... + start time n + end time n", etc., the n It can be determined according to the actual situation, and the time information is obtained according to the actual application. Further, if the start time is omitted in the channel reserved frame format, the start time may be default, for example, starting from the end of the current frame.
  • the method for the channel reservation frame to be reserved for at least two non-contiguous time periods after the station is successfully contending for the channel may include two types of methods: simultaneous multi-segment reservation and step-by-step multi-segment reservation.
  • the multi-segment reservation technology can simultaneously reserve a plurality of non-contiguous time segments by transmitting a channel reservation frame for reserving at least two non-contiguous time segments after the contention channel succeeds;
  • the reservation technology may send at least two channel reserved frames at intervals after the contention channel succeeds by the sending station, where at least one channel reserved frame is used to reserve one time period or to reserve at least two non-contiguous time periods at a time. At least one channel reserved frame is sent during a time period reserved by the previous channel reserved frame and used to reserve a time period or reserve at least two non-contiguous time periods at a time, reserved Each time period is non-continuous.
  • an RTS frame is sent, and at least two Duration fields or a Duration are carried in the MAC header of the RTS frame.
  • the field corresponds to a plurality of different starting moments, and the field is used to set the NAV, that is, the channel reserved frame is used to reserve at least two non-contiguous time periods, so that the non-target station receives the channel reserved frame.
  • set the duration indicated by the Duration fields to the NAV value, and ensure that the at least two non-contiguous time periods (ie, the NAV time) are not entered. Any transmission can be performed even if the channel is idle, specifically similar to Figure 2 above, see Figure 2 above.
  • the sending station sends at least two channel reserved frames at intervals after the contention channel succeeds, and includes five implementation manners:
  • the reserved frame is used to reserve a time period, wherein the next channel reserved frame is sent within a time period reserved by the previous channel reserved frame, and the reserved time periods are discontinuous;
  • at least one channel reserved frame is used for reserving a time period, wherein at least one channel reserved frame is sent during a time period reserved by a previous channel reserved frame and used to reserve a time Segments, and the reserved time periods are non-contiguous;
  • the third implementable mode wherein at least one channel reserved frame is used to reserve a time period, wherein at least one channel reserved frame is in the previous channel pre-
  • the time period reserved for the frame reservation is used to reserve at least two non-contiguous time periods at a time, and the reserved time periods are discontinuous; at least one of the fourth achievable modes
  • the channel reserved frame is used to reserve at least two non-con
  • the sending station contends the channel successfully, that is, after the backoff counting ends, an RTS frame is first sent, and the MAC header of the RTS frame is sent.
  • There is a Duration field which is used to set the NAV, that is, the channel reserved frame is used to reserve a time period, so that the time indicated by the Duration field is received after the non-target station receives the channel reserved frame.
  • the setting of the next reserved time may be performed within the reserved time, thereby continuously reserving more time segments, which is similar to the above FIG. 3, see FIG. 3 above.
  • a fourth implementation manner of the second step-by-step multi-segment reservation technology where at least one channel reserved frame is used to reserve at least two non-contiguous time periods at a time, wherein at least one channel reservation is reserved.
  • the frame is sent during the time period reserved by the previous channel reserved frame and used to reserve a time period, and other channel reserved frames can be used to reserve one time period or at least two non-continuous time
  • the present invention is not particularly limited herein.
  • the first channel reserved frame is used to reserve two non-contiguous time segments at a time
  • the second channel reserved frame is sent within a time period reserved by the first channel reserved frame. For example, when a station is reserved for a time period, after the station contending channel is successfully sent, that is, after the backoff count is finished, an RTS frame is first sent, and two Duration fields are carried in the MAC header of the RTS frame, and the field is used for setting.
  • NAV that is, the channel reserved frame is used to reserve two non-contiguous time segments, so that after the non-target station receives the channel reserved frame, the duration indicated by the duration fields is set to a NAV value, and the No transmission is performed within the set time period (ie, the NAV time); then, in the second time of the reservation, the next reservation time is set according to the similar method described above, specifically similar to FIG. 4 above, please See Figure 4 above.
  • the channel reserved frame that can be used to reserve at least two non-contiguous time segments after being successfully used for one channel competition is used to achieve a channel competition in a scenario in which some data is discontinuously transmitted. At least two non-contiguous time periods can be reserved at a time, thereby reducing the competition overhead.
  • the discontinuous transmission of the data may occur in many scenarios.
  • the method further includes:
  • the sending station determines the length of the time period to be reserved in each period according to the period of the service data to be sent and the amount of data sent in each period, where the at least two non-contiguous time periods correspond to the periods Non-continuous time period.
  • the sending station determines the length of the time period that needs to be reserved in each period according to the period of the service data to be sent and the amount of data sent in each period, so that the next step is to send the channel reserved frame in the next step.
  • the determined reserved time period information is written into the channel reserved frame, thereby realizing the reserved multiple time periods.
  • the transmitting station sends a channel reserved frame after the contention channel succeeds, and the channel reserved frame may adopt different frame formats as described above, for example, "cycle length + number of cycles" + start time + length of reserved time in each cycle.”
  • the communication time is divided into uplink and downlink phases in order to reduce cross interference between uplink and downlink between different base station subsystems (BSSs).
  • BSSs base station subsystems
  • the uplink and downlink time periods can be reserved at the same time.
  • an access point AP
  • a part or all of the time of the uplink and the downlink is reserved, that is, the at least two non-contiguous time periods in the step 702 are used for transmitting uplink data, or both are used for transmitting downlink data, or partially for transmitting uplink data. Partially used to transmit downstream data.
  • the communication time is divided into the uplink and downlink phases, it can be regarded as having a fixed period, and therefore, it can be regarded as a special case in the periodic service scenario. According to the actual situation, it is judged that only the transmission uplink data needs to be reserved, or only the transmission downlink data needs to be reserved, or part of the transmission uplink data and the partial transmission downlink data need to be reserved, so that the channel reservation frame includes the corresponding reserved data. information.
  • this embodiment takes the time period in which only two uplink and downlink discontinuities are reserved as an example.
  • an RTS frame is sent, at the RTS.
  • the MAC header of the frame carries two Duration fields, which are used to set the NAV, that is, the reserved frame of the channel is used to reserve two non-contiguous time segments in the uplink and downlink communication, that is, the downlink segment and the uplink segment,
  • the non-target station receives the channel reserved frame, set the duration indicated by the duration fields to the NAV value, and ensure that no internal (ie, NAV time) is performed during the two non-contiguous time periods that are set.
  • Sending, even if the channel is idle, can not be sent, specifically similar to Figure 5 above, see Figure 5 above.
  • a time period in which only two segments of uplink and downlink discontinuities are reserved is taken as an example.
  • the backoff count ends.
  • an RTS frame is sent first, and a Duration field is carried in the MAC header of the RTS frame.
  • the field is used to set the NAV, that is, the channel reserved frame is used to reserve a time period in the uplink communication, that is, an uplink segment.
  • the non-target station After the non-target station receives the channel reserved frame, set the duration indicated by the Duration field to the NAV value, and ensure that no transmission is performed within the set time period (ie, the NAV time);
  • the reserved time is carried out according to the above method.
  • the setting of the line communication reservation time is the downlink section, which is similar to the above-mentioned FIG. 6, see FIG. 6 above.
  • the foregoing technical solutions of the present embodiment are further explained by taking the typical scenarios of the periodic service and the uplink and downlink communication as an example.
  • the foregoing method may be used to implement a multi-segment reservation after a competition. Technology, no longer repeat here.
  • Step 703 The sending station receives a response frame of the channel reserved frame sent by the target station, where the response frame is used to reserve the at least two non-contiguous time segments, so that the response frame is received.
  • the non-target station cannot transmit data during the at least two non-contiguous time periods.
  • the sending station receives a response frame that is replied after the target station correctly receives the channel reserved frame sent by the sending station
  • the response frame may be a CTS frame corresponding to the RTS frame and an ACK corresponding to the data frame.
  • a frame structure such as a frame
  • the MAC header of the response frame also carries a Duration field
  • the Duration field carried in the MAC header of the channel reservation frame sent by the sending station for setting the NAV according to the channel reserved frame format may be The same, or different, but reserved for the same time period
  • the response frame may reserve the at least two non-contiguous time periods, so that the non-target station receiving the response frame has at least two discontinuities set The time period cannot send data, that is, NAV is set for the non-target site around the target site.
  • Step 704 The sending station communicates with the target station in the reservation for at least two non-contiguous time periods.
  • the sending station sets the NAV to the non-target station by sending the channel reserved frame, so that the station where the NAV is set remains silent during the NAV period, thereby ensuring at least two non-contiguous times in the reservation.
  • the transmitting station and the target station in the segment can communicate without interference.
  • NAV frames are updated with NAV; if the newly received NAV is shorter than the NAV set by itself, no update is required.
  • the sending station sends a channel reserved frame for reserving at least two non-contiguous time segments, so that a channel competition can be performed in some scenarios in which data is not continuously transmitted.
  • the channel reservation of multiple discrete time segments is reserved lively, which saves competition overhead, saves channel resources, and facilitates the transmitting station to communicate with the target site in a plurality of reserved discrete time periods.
  • FIG. 8 is a schematic flowchart of Embodiment 3 of the information sending method of the present invention. As shown in FIG. 8, the method may include:
  • Step 801 The target station receives the indication information sent by the sending station, where the indication information is used to indicate that the target station cannot initiate data transmission actively for at least two non-contiguous time periods.
  • the target station receives an indication message that is sent by the sending station to indicate that the target station cannot initiate data transmission actively for at least two non-contiguous time periods
  • the indication message may be an RTS frame, a CTS- Reserved frames such as to-self frame, data frame, and so on.
  • the indication information may be sent by using one frame, where the frame includes information for indicating the at least two discontinuous time segments; or, the indication information is sent by using at least two frames, where And the at least two frames respectively include information indicating at least one of the at least two non-contiguous time segments, and the next one of the at least two frames is indicated by the previous frame Sent during the time period.
  • Step 802 The target station receives data sent by the sending station in the at least two non-contiguous time periods.
  • the method before the receiving, by the target station, the data sent by the sending station in the at least two non-contiguous time periods, the method further includes:
  • the target station replies to the sending station with response information, where the response information is used to indicate that the receiving station cannot initiate data transmission actively within the at least two non-contiguous time periods.
  • the sending, by the target station, the response information to the sending station includes: if the indication information is sent by using one frame, the target station sends a response frame to the sending station; or
  • the target The station transmits at least two response frames correspondingly to the sending station.
  • the response information needs to be returned, and the response information may correspond to a CTS frame corresponding to the RTS frame and an ACK frame corresponding to the data frame.
  • the frame is also carried in the MAC header of the response frame for setting The Duration field of NAV.
  • the response frame may correspond to the channel reservation frame, and may be one or more.
  • the target station sends a response frame to the sending station, where The duration field carried in the MAC header of the response frame may be multiple, that is, the response frame includes information indicating the at least two non-contiguous time segments, so that the receiving station that receives the response frame is set.
  • the data cannot be actively sent in at least two non-contiguous time periods; if the indication information is sent through at least two frames, the target station correspondingly sends at least two response frames to the sending station, the response frame
  • the Duration field carried in the MAC header may be one or more, so that the receiving station that receives the response frame cannot actively send data for at least two non-contiguous time periods, and the receiving station is in addition to the sending station.
  • the duration field information may be the same as the Duration field information in the channel reservation frame sent by the sending station, or different but used to reserve the same time period.
  • the reserved time period information included in the response frame sent by the target station to the sending station is consistent with the reserved time period information in the reserved frame sent by the target station and the sending station, where the reservation is reserved.
  • the frame format of the response frame of the frame is consistent with the format of the reserved frame, for example, "start time 1 + duration 1 + start time 2+ duration 2+... + start time n + duration n", or "start” Time 1 + end time 1 + start time 2+ end time 2+ ... + start time n + end time n" and other formats, the n can be determined according to the actual situation, wherein the time information is based on the actual application obtain. Further, if the start time is omitted from the reserved frame format, it means that the start time is the default, that is, from the end of the current frame.
  • the method in which the target station receives the reserved frame sent by the sending station and sends the response frame to the sending station may correspondingly include two methods: simultaneous multi-segment reservation and step-by-step multi-segment reservation.
  • the multi-segment reservation technology may simultaneously send a response frame to the sending station to indicate that the receiving station cannot initiate data transmission actively for at least two non-contiguous time periods through the target station to implement simultaneous multi-segment reservation;
  • the reservation technology may send, by the target station, two response frames for indicating that the receiving station cannot initiate data transmission actively in at least one of the at least two non-contiguous time periods, where the at least two The latter response frame in the response frames is sent during the time period indicated by the previous response frame.
  • FIG. 9 is a schematic diagram 1 of Embodiment 3 of the method for transmitting information according to the present invention.
  • a target station receives a reserved frame sent by a sending station.
  • the response frame of the reserved frame is sent to the sending station, where the response frame is a CTS frame corresponding to the RTS frame, and at least two Duration fields are also carried in the MAC header of the CTS frame, where the field is used to set the NAV.
  • the response frame is used to indicate that the station that received the response frame cannot actively initiate data transmission during the at least two non-contiguous time periods, that is, after receiving the response frame, the station that receives the response frame receives the response frame.
  • the duration indicated by the Duration field is set to the NAV value, and it is guaranteed that data cannot be transmitted for at least two non-contiguous time periods.
  • the Duration field information may be the same as the Duration field information in the reserved frame received by the sending station, or different but used to reserve the same time period.
  • FIG. 10 is a schematic diagram 2 of the third embodiment of the information transmission method of the present invention.
  • the response frame of the reserved frame is sent to the sending station, where the response frame is a CTS frame corresponding to the RTS frame, and a Duration field is also carried in the MAC header of the CTS frame, where the field is used to set the NAV, that is, the The response frame is used to reserve a time period, so that the station receiving the response frame sets the duration indicated by the Duration field to a NAV value, and ensures that data cannot be transmitted within the set time period;
  • the next reservation time is set according to the above method, and so on, and more time periods are reserved continuously.
  • the Duration field information may be the same as the Duration field information in the channel reservation frame received by the transmitting station, or different but used to reserve the same time period.
  • the technical solution described in this embodiment may be applicable to some scenarios in which data is not continuously transmitted, that is, it may be necessary to reserve a plurality of periods of discontinuous time periods.
  • the data discontinuous transmission may occur in many scenarios.
  • the technical solutions of the present embodiment are further explained by taking the typical scenarios of the periodic service and the uplink and downlink communication as an example.
  • the reserved time period information in the response frame of the target station sending the reserved frame to the sending station is consistent with the reserved time period information in the reserved frame sent by the target station receiving the sending station, the reserved frame
  • the frame format of the response frame is the same as the format of the reserved frame, and the present invention will not be described herein.
  • part or all of the uplink time or the downlink time or all the time of the uplink and downlink may be reserved, that is, at least two discontinuities in step 802.
  • the time period is used to transmit uplink data, or both are used to transmit downlink data, or partially used to transmit uplink data and partially used to transmit downlink data.
  • NAV frames are updated with NAV; if the newly received NAV is shorter than the NAV set by itself, it will be ignored.
  • the target station sends, to the sending station, indication information indicating that the target station cannot initiate data transmission actively for at least two non-contiguous time periods, and in the at least two non-contiguous time periods. Receiving data sent by the sending station, thereby flexibly reserving channel reservation of multiple consecutive time segments in a scenario in which some data is discontinuously transmitted, thereby saving channel resources.
  • FIG. 11 is a schematic flowchart of Embodiment 4 of an information sending method according to the present invention. As shown in FIG. 11, the method in this implementation may include:
  • Step 1101 The target station receives a channel reservation frame sent by the sending station.
  • the method includes: receiving, by the target station, a channel reservation frame sent by the sending station; or, the target station receiving at least two channel reserved frames sent by the sending station interval.
  • the target station receives a channel reservation frame sent by the transmitting station for reserving at least two non-contiguous time periods
  • the channel reservation frame may be a frame structure such as an RTS frame, a CTS-to-self frame, or a data frame.
  • Step 1102 The target station sends a response frame of the channel reservation frame to the sending station, where the response frame is used to reserve at least two non-contiguous time segments, so that the non-response frame is received.
  • the target site is unable to transmit data for the at least two non-contiguous time periods.
  • the method includes: sending, by the target station, a response frame of the one channel reserved frame to the sending station, the response frame For storing at least two non-contiguous time periods at a time; or, when the target station receives at least two channel reservation frames sent by the sending station interval, correspondingly, the method includes: sending, by the target station, the Sending, by the station interval, a response frame of the at least two channel reserved frames, where at least one response frame is used to reserve a time period or to reserve at least two non-contiguous time segments at a time, wherein at least one response frame It is sent in the time period reserved by the previous response frame and is used to reserve a time period or to reserve at least two non-contiguous time periods at one time, and the reserved time periods are non-contiguous.
  • the response frame after the target station correctly receives the channel reservation frame sent by the sending station, the response frame needs to be returned, and the response frame may be a CTS frame corresponding to the RTS frame, an ACK frame corresponding to the data frame, and the like. Structure, which is also carried in the MAC header of the response frame for setting the NAV Duration field.
  • the response frame may correspond to the channel reservation frame, and may be one or more.
  • the Duration field carried in the MAC header of the response frame may be multiple;
  • the Duration field carried in the MAC header of the response frame may be one or more, so that the non-target station of the target station that receives the response frame is in at least two non-contiguous time periods. Unable to send data.
  • the Duration field information may be the same as the Duration field information in the channel reservation frame received by the transmitting station, or different but used to reserve the same time period.
  • the reserved time period information in the response frame of the target station transmitting the channel reserved frame to the transmitting station is consistent with the reserved time period information in the channel reserved frame sent by the target station receiving the transmitting station, and the response frame of the reserved frame of the channel is
  • the frame format is consistent with the format of the reserved frame of the channel, for example "start time 1 + duration 1 + start time 2+ duration 2+... + start time n + duration n", or "start time 1 + termination” Time 1 + start time 2+ end time 2+ ... + start time n + end time n” and other formats, the n can be determined according to a specific actual situation, wherein the time information is obtained according to the actual application. Further, if the start time is omitted in the channel reserved frame format, it means that the start time is default, that is, from the end of the current frame.
  • the method that the target station receives the channel reservation frame sent by the sending station and sends the response frame to the sending station to reserve at least two non-contiguous time periods may include two categories of simultaneous multi-segment reservation and step-by-step multi-segment reservation. method.
  • the multi-segment reservation technology may simultaneously send a response frame of the channel reserved frame for reserving at least two non-contiguous time segments to the sending station through the target station to implement simultaneous multi-segment reservation;
  • the technology may send, by the target station, a response frame of at least two channel reserved frames to the sending station interval, where at least one response frame is used to reserve one time period or at least two non-contiguous time periods are reserved at a time, where At least one response frame is sent within a time period reserved by the previous response frame and used to reserve a time period or to reserve at least two non-contiguous time periods at a time, and the reserved time periods are discontinuous. of.
  • the target station after receiving the channel reservation frame sent by the sending station, the target station sends a response frame of the channel reserved frame to the sending station, where the response frame is corresponding to the RTS frame.
  • the CTS frame also carries at least two Duration fields in the MAC header of the CTS frame, where the field is used to set the NAV, that is, the response frame is used to reserve at least two non-contiguous time segments, so that the After receiving the response frame, the non-target station of the target station of the response frame sets the duration indicated by the Duration fields to a NAV value, and ensures that at least two non-contiguous ones are set. Data cannot be sent during the time period.
  • the Duration field information and the Duration field information in the channel reservation frame received by the sending station may be the same according to the channel reserved frame format, or different but used to reserve the same time period, specifically similar to FIG. 9 above. See Figure 9 above.
  • the response frame in which the target station sends at least two channel reserved frames to the sending station interval in the embodiment includes five implementation manners:
  • the response frames are used to reserve a time period, wherein the latter response frame is sent within a time period reserved by the previous response frame, and the reserved time periods are non-contiguous;
  • At least one response frame is used to reserve a time period, wherein at least one response frame is sent during a time period reserved by the previous response frame and used to reserve a time period, and each time period reserved Is non-contiguous;
  • the third implementable mode wherein at least one response frame is used to reserve a time period, wherein at least one response frame is sent within a time period reserved by the previous response frame and used for one time Retaining at least two non-contiguous time periods, and each reserved time period is non-contiguous;
  • the fourth implementable mode wherein at least one response frame is used to reserve at least two non-one at a time a continuous time period
  • the target station after receiving the channel reservation frame sent by the sending station, the target station first sends a response of the channel reserved frame to the sending station.
  • the response frame is a CTS frame corresponding to the RTS frame
  • a Duration field is also carried in the MAC header of the CTS frame, where the field is used to set the NAV, that is, the response frame is used to reserve a time period, so that
  • the non-target station of the target station receiving the response frame sets the duration indicated by the Duration field to a NAV value, and ensures that data cannot be transmitted within the set time period; then, in the pre- During the retention time, the next reservation time is set according to the above method, and so on, and more time periods are reserved continuously.
  • the duration field information in the channel reservation frame and the channel reservation frame received by the sending station may be the same according to the channel reserved frame format, or different but used to reserve the same time period, specifically similar to FIG
  • the technical solution described in this implementation may be applicable to some scenarios in which data is not continuously transmitted, that is, It is necessary to reserve multiple periods of discontinuous time.
  • the discontinuous transmission of data may occur in many scenarios.
  • the above technical solutions are further explained by taking two typical scenarios of periodic service and uplink and downlink communication as an example.
  • the reserved time period information in the response frame of the channel reservation frame sent by the target station to the sending station is consistent with the reserved time period information in the channel reserved frame sent by the target station receiving the transmitting station, the channel
  • the frame format of the response frame of the reserved frame is consistent with the format of the reserved frame of the channel, and the present invention will not be described herein.
  • part or all of the uplink time or the downlink time or all the time of the uplink and downlink may be reserved, that is, at least two discontinuities in step 1102.
  • the time period is used to transmit uplink data, or both are used to transmit downlink data, or partially used to transmit uplink data and partially used to transmit downlink data.
  • Step 1103 The target station communicates with the sending station during the reservation for at least two non-contiguous time periods.
  • the channel reservation frame sent by the transmitting station and the response frame replied to the transmitting station to the channel reservation frame are received by the target station, and the NAV is set at all sites around the transmitting station and the target, and the NAV-enabled station is in the NAV.
  • the silent state is maintained for a period of time, thereby ensuring that the target station and the transmitting station can communicate undisturbed during at least two non-contiguous periods of the reservation.
  • a site After a site is set to NAV, if it receives a frame carrying a longer NAV before the end of the current NAN, the NAV is updated; if the newly received NAV is shorter than the NAV set by itself, it is ignored.
  • a response frame for reserving at least two non-contiguous time segments is sent to the sending station by using the target station, so that the channel pre-segment of the multi-segment discontinuous time period is flexibly reserved in the scenario in which some data is discontinuously transmitted.
  • the channel resources are saved, and the target station is allowed to communicate with the transmitting station within a plurality of reserved discontinuous time periods.
  • FIG. 12 is a schematic flowchart of Embodiment 5 of the method for sending information according to the present invention. As shown in FIG. 12, the method in this embodiment may include:
  • Step 1201 The sending station sends indication information, where the indication information is used to indicate a reserved time period.
  • the reserved time period is a continuous time period or at least two non-continuous times Intersection.
  • the sending station sends the indication information after the contention channel succeeds
  • the indication information may be a reserved frame such as RTS, so that the receiving station that receives the reserved frame indicates the Duration field in the reserved frame.
  • the duration is set to the NAV value, and the station to which the NAV is set remains silent during the NAV period, thereby reserving the period of time during which data is sent to the target station.
  • the Duration field in the channel reserved frame includes a continuous period of time information, so as to reserve a continuous period of time; or, the Duration field in the channel reserved frame includes at least two non-contiguous time period information. Thus, to reserve at least two non-contiguous time periods.
  • Step 1202 The sending station sends data in the reserved time period.
  • the sending station may send data to the target station in the reserved time period, and the reserved time period may be a continuous period of time or at least two reserved for the sending station after a successful channel competition. Non-continuous time period.
  • Step 1203 The sending station sends the release information in the reserved time period, where the release information is used to instruct the receiving station to release at least a part of the remaining time period of the time period.
  • the site that successfully performs NAV setting for other stations is called a TXOP holder, which has the transmission right within the NAV period.
  • the TXOP holder when the data is transmitted after part of the time in the period of successful reservation, the TXOP holder has no more data to send, but in a certain part or parts of the second half of the reserved time.
  • the TXOP holder may send channel release information during the time period, and the release information may be a released frame such as a modified CF-End frame, the release frame.
  • the time period information of the release can be obtained according to the information of the actual situation. For example, for the periodic service, it can be determined according to information such as the length of time and the length of time required to be released. For the uplink and downlink services, information such as which time periods in the uplink and downlink services need to be released may be released.
  • the reserved time period may be a continuous time period or at least two non-contiguous time periods.
  • the TXOP holder may send a channel release frame after the data is sent to indicate the remaining time period in the time period during which the station receiving the channel release frame releases the reservation, thereby allowing other stations to perform channel competition.
  • the format of the release frame sent by the sending station may be various, for example, "release start time 1 + release time length 1 + release start time 2+ release time length 2+... + release start Time n + release time length n” or "release start time 1 + release termination time 1 + release start time 2+ release termination time 2+ ... + release start time n + release termination time n", etc. n can be determined according to the actual situation, and the time information is obtained according to the actual application. Further, if the start time is omitted in the release frame format, it means that the start time is default, that is, from the end of the current frame.
  • FIG. 13 is a first schematic diagram of Embodiment 5 of the method for transmitting information according to the present invention.
  • the release station releases two time periods in the remaining time period of the reserved continuous period of time as an example, and the sending station is in the example.
  • the RTS reserved frame is reserved for a continuous period of time to send data.
  • the sending station has no more data to send, but in the second half of the reserved time.
  • the station may send a CF-End frame in a continuous period of time of the reservation, and the channel release frame carries a continuous period of time for releasing the reservation.
  • Time period information of the remaining two parts of the remaining time period that is, the channel release frame is used to indicate that the station receiving the release frame releases the remaining two parts of the remaining time period of the reserved time period Reserving resources releases segment 1 and release segment 2, allowing other sites to compete for channels.
  • FIG. 14 is a second schematic diagram of Embodiment 5 of the method for transmitting information according to the present invention. As shown in FIG. 14, a portion of the second and third discontinuous time periods of the five discontinuous time periods reserved by the channel release frame release is shown in FIG. For example, when the sending station sends data in a non-contiguous first time period and a second time period after the end of the backoff count is sent, the sending station is in the middle part of the second time period.
  • the station may send a CF-End frame in the second time period of the reservation, where the channel release frame carries a second time period and a third time period for releasing the reservation.
  • the time period information of the NAV setting in the middle part that is, the channel release frame is used to release the The reserved resources of the reserved second time period and the middle part of the third time period release segment 1 and release segment 2, thereby allowing other stations to perform channel competition.
  • the above downlink communication is taken as an example. If the access point reserves the uplink and downlink time segments at one time, but the downlink data is small, the entire downlink time period does not need to be occupied. After the downlink data is sent, the channel release frame can be sent.
  • the channel release frame includes downlink period information that needs to be released, thereby releasing the remaining time of the downlink period for use by other access points/sites.
  • the sending station sends the release information indicating that the receiving station releases at least a part of the remaining time period of the time period, thereby implementing flexible release of the remaining channel reservation in some scenarios in which data is not continuously transmitted. Resources, saving channel resources and improving system utilization efficiency.
  • FIG. 15 is a schematic flowchart of Embodiment 6 of the information sending method of the present invention. As shown in FIG. 15, the method in this embodiment may include:
  • Step 1501 The sending station sends a channel reservation frame after the contention channel succeeds, to reserve a time period for sending data to the target station.
  • the sending station sends a channel reservation frame after the contention channel succeeds to reserve a continuous period of time; or, the sending station sends a channel reservation frame after the contention channel succeeds, to reserve at least Two non-contiguous time periods.
  • the sending station sends the channel reservation frame in the form of sending, so that the non-target station that receives the channel reserved frame sets the duration indicated by the Duration field in the channel reserved frame.
  • the NAV-set site remains silent for the NAV period, thereby reserving the period of time during which data is sent to the target site.
  • the Duration field in the channel reserved frame includes a continuous period of time information, so as to reserve a continuous period of time; or, the Duration field in the channel reserved frame includes at least two non-contiguous time period information. Thus, to reserve at least two non-contiguous time periods.
  • Step 1502 The sending station sends data in a reserved time period.
  • the method when the sending station sends a channel reservation frame after the contention channel is successful, to reserve a continuous period of time, the method includes: the continuous period reserved by the sending station after the contention channel succeeds. Transmitting data in a time period; or, when the transmitting station sends a channel reservation frame after the contention channel is successful, to reserve at least two non-contiguous time periods, correspondingly, the method includes: the sending station is in a contention channel Number of transmissions in the at least two non-contiguous time periods reserved after success According to.
  • the sending station sends data in a reserved time period
  • the reserved time period may be a continuous period of time or at least two non-contiguous times reserved after the channel successfully competes by the sending station. segment.
  • Step 1503 The sending station sends a channel release frame in a process of transmitting data in the time period, where the channel release frame is used to release at least a part of the time period in the remaining time period.
  • the transmitting station sends a channel reservation frame after the contention channel succeeds to reserve a continuous period of time, and correspondingly, the transmission station reserves the continuous period of time after the contention channel succeeds.
  • the method includes: sending, by the sending station, a channel release frame in a process of sending data in the reserved consecutive time period, where the channel release frame is used to release the reserved segment At least a portion of the time period of the remaining time period of the continuous time period; or, when the transmitting station succeeds in transmitting the channel reservation frame, to reserve at least two non-contiguous time periods, correspondingly,
  • the method includes: sending, by the sending station, a channel release frame in the process of sending data in the time period, The channel release frame is configured to release at least a portion of the remaining time periods of the reserved at least two non-contiguous time periods.
  • the site that successfully performs NAV setting for other stations is called a TXOP holder, which has the transmission right within the NAV period.
  • the TXOP holder has no more data to send, but in a certain part or parts of the second half of the reserved time.
  • the TXOP holder may send a channel release frame during the time period, and the channel release frame may be a modified CF-End frame, and the channel release frame carries The time period information of the NAV setting of the remaining part or portions of the remaining time period in the time period for ending the reservation, that is, the channel release frame is used to release the remaining part of the remaining time period in the reserved time period. Or some parts of the reserved resources, allowing other sites to compete for channels.
  • the time period information of the release can be obtained according to the information of the actual situation. For example, for the periodic service, it can be determined according to information such as the length of time and the length of time required to be released.
  • information such as which time periods in the uplink and downlink services need to be released may be released. Determine, for some information can be determined based on known statistical summaries to determine which reserved time periods need to be released, etc.
  • the TXOP holder After a period of time is successfully transmitted, the TXOP holder has already transmitted the data after a partial time of data transmission, but There is also a remaining reserved time period, and the reserved time period may be a continuous time period or at least two non-contiguous time periods.
  • the TXOP holder may send a channel release frame after the data is sent, for releasing the remaining time period of the reserved time period, thereby allowing other stations to perform channel contention.
  • the format of the channel release frame sent by the sending station may be various, for example, “release start time 1 + release time length 1 + release start time 2+ release time length 2+... + release” Start time n + release time length n” or "release start time 1 + release termination time 1 + release start time 2+ release termination time 2+ ... + release start time n + release termination time n” format, etc.
  • the description of n can be determined according to the actual situation, and the time information is obtained according to the actual application. Further, if the start time is omitted in the channel release frame format, it means that the start time is default, that is, from the end of the current frame.
  • the two parts of the remaining time period of the reserved time period are released by the channel release frame as an example, and the sending station sends a reserved portion of the RTS channel reserved frame after the backoff count ends. Sending data in consecutive time periods. After a part of the time, the sending station has no more data to send, but when there are data in the second half of the reserved period, the data needs to be received/sent.
  • the station may send a CF-End frame in a continuous period of time of the reservation, the channel release frame carrying a period of NAV setting of the remaining two parts of the remaining time period of the continuous time period for ending the reservation
  • the information that is, the channel release frame is used to release the reserved resources of the remaining two parts of the remaining time period of the reserved continuous period of time, that is, release segment 1 and release segment 2, thereby allowing other stations to perform channel competition, specifically Similar to Figure 13 above, please see Figure 13 above.
  • a part of the second and third non-continuous time periods of the five discontinuous time periods reserved by the channel release frame release is taken as an example, and the sending station sends the RTS after the backoff count ends. After transmitting the data in the non-contiguous first time period and the second time period reserved by the channel reserved frame, the transmitting station has no more data to be sent in the middle part of the second time period and the middle part of the third time period.
  • the station can be in the Sending a CF-End frame in the second period of time
  • the channel release frame carries time period information of the NAV setting for ending the second period of the reservation and the middle portion of the third period, that is, the channel release frame
  • the reserved resources for releasing the reserved second time period and the middle portion of the third time period are the release segment 1 and the release segment 2, thereby allowing other sites to perform channel competition, specifically Similar to Figure 14 above, see Figure 14 above.
  • the above downlink communication is taken as an example. If the access point reserves the uplink and downlink time segments at one time, but the downlink data is small, the entire downlink time period does not need to be occupied. After the downlink data is sent, the channel release frame can be sent.
  • the channel release frame includes downlink period information that needs to be released, thereby releasing the remaining time of the downlink period for use by other access points/sites.
  • the sending station sends a channel release frame for releasing at least a part of the remaining time period, thereby implementing flexible release of the remaining channel reserved resources in a scenario in which data is not continuously transmitted, thereby saving channel resources. , improve the efficiency of the system.
  • Figure 16 is a schematic flowchart of the seventh embodiment of the information sending method of the present invention. As shown in Figure 16, the method in this embodiment may include:
  • Step 1601 The receiving station receives the indication information sent by the sending station, where the indication information is used to indicate a reserved time period.
  • the reserved time period is a continuous time period or at least two non-contiguous time periods.
  • the receiving station receives the indication information sent by the sending station, where the receiving station is a receiving station other than the target station among all receiving stations that receive the indication information, and the indication information may be an RTS or the like.
  • the receiving station sets the duration indicated by the Duration field in the reserved frame to a NAV value, that is, maintains a silent state during the NAV period, so as to facilitate the sending station to the target site without interference during the time period. send data.
  • Step 1602 The receiving station receives the release information sent by the sending station in the reserved time period, where the release information is used to indicate that the receiving station releases the remaining time period of the time period. At least part of the time period.
  • the receiving station receives the release information sent by the sending station in the reserved time period
  • the release information may be a released frame such as a modified CF-End frame, where the channel release frame is carried to release the pre-
  • the time period information set by the NAN of a part or some part of the remaining time period in the remaining time period, that is, the release frame is used to indicate a part or part of the remaining time period in the time period during which the receiving station releases the reservation Several parts of reserved resources.
  • the reserved time period may be a continuous time period or at least two non-continuous time periods, and correspondingly, the release frames respectively carry a continuous time period for releasing the reservation or the reserved Time period information set by the NAN of a part or portions of the remaining time period in at least two non-continuous time periods. Further, the receiving station releases the reserved time period according to the time period information set by the NAN of the part or portions of the remaining time period in the release time period carried in the release frame. A reserved resource of a corresponding part or parts of the remaining time period, so that the receiving station can perform channel competition during the released time periods.
  • the reserved time period may be a reserved continuous time period or at least two non-continuous time periods reserved.
  • the receiving station receives the release information sent by the sending station to indicate that the receiving station releases at least a part of the remaining time period of the time period, in the reserved time period, It realizes flexible release of remaining reserved resources in some scenarios where data is not continuously transmitted, saves channel resources, and improves system utilization efficiency.
  • FIG. 17 is a schematic flowchart of Embodiment 8 of the information sending method of the present invention. As shown in FIG. 17, the method in this embodiment may include:
  • Step 1701 The receiving station receives, in the reserved time period, a channel release frame sent by the sending station, where the channel release frame is used to release at least a part of the time period in the remaining time period.
  • the receiving station receives a channel release frame sent by the sending station in a reserved period of time; or, the receiving station receives the sending station in at least two non-contiguous time periods reserved The transmitted channel releases the frame.
  • the receiving station receives the channel release frame sent by the sending station in the reserved time period
  • the channel release frame may be a modified CF-End frame, where the channel release frame is carried to end the reservation.
  • the time period information set by the NAN of a certain part or some parts of the remaining time period in the time period, that is, the channel release frame is used to release a part or parts of the remaining time period of the reserved time period.
  • the reserved time period may be a continuous time period or at least two non-continuous time periods, and correspondingly, the channel reserved frame respectively carries a continuous time period for ending the reservation or the pre-
  • Step 1702 The receiving station releases at least a part of the remaining time period according to the channel release frame.
  • the receiving station when the receiving station receives the channel release frame sent by the sending station in a reserved period of time, the receiving station includes: the receiving station releasing the reserved segment according to the channel release frame. At least a portion of the remaining time period of the continuous time period; or, when the receiving station receives the letter sent by the transmitting station within at least two non-contiguous time periods reserved When the frame is released, correspondingly, the receiving station releases at least a part of the remaining time periods of the reserved at least two non-contiguous time periods according to the channel release frame.
  • the receiving station releases the time period information set by the NAN of a part or portions of the remaining time period in the time period for ending the reservation according to the channel release frame, and releases the remaining time period in the reserved time period. Corresponding part or parts of the reserved resources, so that the receiving station can perform channel competition during the released time periods.
  • the reserved time period may be a reserved continuous time period or at least two non-continuous time periods reserved.
  • the receiving station releases the corresponding time period in the reserved time period according to the channel release frame sent by the sending station for releasing at least a part of the remaining time period of the reserved time period, thereby implementing the corresponding time period in the reserved time period.
  • the remaining reserved resources are flexibly released, channel resources are saved, and the utilization efficiency of the system is improved.
  • FIG. 18 is a schematic structural diagram of Embodiment 1 of a transmitting station according to the present invention.
  • the sending station 180 in this embodiment includes: a contention module 1801, an indication module 1802, and a sending module 1803.
  • the competition module 1801 is used to compete for a channel
  • the indication module 1802 is configured to send the indication information after the contention channel succeeds, where the indication information is used to indicate that the receiving station cannot initiate data transmission actively for at least two non-contiguous time periods; the sending module 1803 is configured to: Data is sent in two non-contiguous time periods.
  • the sending station 180 further includes:
  • the receiving module is configured to receive response information of the target site reply, where the response information is used to indicate that the receiving station cannot actively initiate data transmission during the at least two non-contiguous time periods.
  • the indication information is sent by using one frame, where the frame includes information for indicating the at least two discontinuous time segments; or
  • the indication information is sent by using at least two frames, where the at least two frames respectively include information indicating at least one of the at least two non-contiguous time periods, and the at least two frames The next frame in the frame is sent within the time period indicated by the previous frame.
  • the sending station 180 further includes:
  • the determining module is configured to determine the length of the at least two non-contiguous time segments according to a period of the data to be sent and an amount of data sent in each period.
  • the at least two non-contiguous time periods are used to transmit uplink data, or both are used to transmit downlink data, or partially used to transmit uplink data and partially used to transmit downlink data.
  • the sending station of this embodiment may be used in the technical solution of the first embodiment of the information sending method, and the implementation principle and the technical effect are similar, and details are not described herein again.
  • FIG. 19 is a schematic structural diagram of Embodiment 2 of a transmitting station according to the present invention.
  • the transmitting station 190 provided in this embodiment includes a processor 1901 and a memory 1902.
  • the transmitting station 190 can also include a transmitter 1903 and a receiver 1904.
  • the transmitter 1903 and the receiver 1904 can be connected to the processor 1901.
  • the transmitter 1903 is configured to transmit data or information
  • the receiver 1904 is configured to receive data or information
  • the memory 1901 is configured to store execution instructions.
  • the processor 1901 communicates with the memory 1902, and the processor 1901
  • the execution instruction in the memory is used to perform the operation in the first embodiment of the above information transmission method.
  • the sending station of this embodiment may be used to implement the technical solution of the first embodiment of the information sending method of the present invention.
  • the implementation principle and technical effects are similar, and details are not described herein again.
  • FIG. 20 is a schematic structural diagram of Embodiment 3 of a transmitting station according to the present invention.
  • the sending station 200 in this embodiment includes: a contention module 2001, a sending module 2002, a receiving module 2003, and a communication module 2004.
  • the competition module 2001 is used for a contention channel
  • the sending module 2002 is configured to send a channel reservation frame after the contention channel succeeds, where the channel reservation frame is used to reserve at least two non-contiguous time periods, so that the non-target station that receives the channel reserved frame is The data cannot be transmitted during the at least two non-contiguous time periods;
  • the receiving module 2003 is configured to receive a response frame of the channel reservation frame sent by the target station, where the response frame is used to reserve the at least two non-contiguous time segments, so that the non-target of the response frame is received.
  • the station cannot send data during the at least two non-contiguous time periods;
  • the communication module 2004 is configured to communicate with the target site during the reservation for at least two non-contiguous time periods.
  • the sending module 2002 is specifically configured to send, after the contention channel succeeds, a channel reservation frame, where the channel reserved frame is used to reserve at least two non-contiguous time segments;
  • At least two channel reserved frames are sent at intervals, wherein at least one channel reserved frame is used to reserve a time period or to reserve at least two non-contiguous time periods at a time, wherein at least one channel is reserved.
  • the reserved frame is sent within a time period reserved by the previous channel reserved frame and is used to reserve a time period or to reserve at least two non-contiguous time periods at a time, and each reserved time period It is non-continuous.
  • the method further includes: a determining module, configured to determine, according to a period of the service data to be sent, and a quantity of data sent in each period, a length of a period of time required to be reserved in each period, where the at least two discontinuities
  • the time period is a non-contiguous time period corresponding to each period.
  • the at least two non-contiguous time periods are used to transmit uplink data, or both are used to transmit downlink data, or partially used to transmit uplink data and partially used to transmit downlink data.
  • the sending station of this embodiment may be used in the technical solution of the second embodiment of the information sending method, and the implementation principle and the technical effect are similar, and details are not described herein again.
  • FIG. 21 is a schematic structural diagram of Embodiment 4 of a transmitting station according to the present invention.
  • the transmitting station 210 provided in this embodiment includes a processor 2101 and a memory 2102.
  • the transmitting station 210 can also include a transmitter 2103 and a receiver 2104.
  • the transmitter 2103 and the receiver 2104 can be connected to the processor 2101.
  • the transmitter 2103 is configured to transmit data or information
  • the receiver 2104 is configured to receive data or information
  • the memory 2101 is configured to store execution instructions.
  • the processor 2101 communicates with the memory 2102.
  • the processor 2101 The execution instruction in the memory is used to perform the operation in the second embodiment of the above information transmission method.
  • the transmitting station in this embodiment may be used to implement the technical solution in the second embodiment of the foregoing information sending method of the present invention.
  • the implementation principle and technical effects are similar, and details are not described herein again.
  • FIG. 22 is a schematic structural diagram of Embodiment 1 of a target station according to the present invention.
  • the target station 220 in this embodiment includes: a first receiving module 2201 and a second receiving module 2202.
  • the first receiving module 2201 is configured to receive the indication information sent by the sending station, where the indication information is used to indicate that the target station cannot actively initiate data transmission in at least two non-contiguous time periods;
  • the second receiving module 2202 is configured to receive data sent by the sending station during the at least two non-contiguous time periods.
  • the target site 220 further includes:
  • the replying module is configured to reply to the sending station with response information, where the response information is used to indicate that the receiving station cannot initiate data transmission actively within the at least two non-contiguous time periods.
  • the replying module is specifically configured to: if the indication information is sent by using one frame, send a response frame to the sending station; or
  • the indication information is sent by using at least two frames, where the at least two frames are divided into And storing information for indicating at least one of the at least two non-contiguous time periods, and transmitting at least two response frames correspondingly to the sending station.
  • the at least two non-contiguous time periods are used to transmit uplink data, or both are used to transmit downlink data, or partially used to transmit uplink data and partially used to transmit downlink data.
  • the target site in this embodiment may be used in the technical solution of the third embodiment of the information sending method, and the implementation principle and the technical effect are similar, and details are not described herein again.
  • FIG. 23 is a schematic structural diagram of Embodiment 2 of a target station according to the present invention.
  • the target site 230 provided by this embodiment includes a processor 2301 and a memory 2302.
  • the target site 230 can also include a transmitter 2303 and a receiver 2304.
  • the transmitter 2303 and the receiver 2304 can be connected to the processor 2301.
  • the transmitter 2303 is configured to transmit data or information
  • the receiver 2304 is configured to receive data or information
  • the memory 2301 is configured to store execution instructions.
  • the processor 2301 communicates with the memory 2302, and the processor 2301
  • the execution instruction in the memory is used to perform the operation in the third embodiment of the above information transmission method.
  • the target site of this embodiment may be used to implement the technical solution of the third embodiment of the foregoing information sending method of the present invention.
  • the implementation principle and the technical effects are similar, and details are not described herein again.
  • FIG. 24 is a schematic structural diagram of Embodiment 3 of a target station according to the present invention.
  • the target station 240 provided by this embodiment includes: a receiving module 2401, a sending module 2402, and a communication module 2403.
  • the receiving module 2401 is configured to receive a channel reserved frame sent by the sending station.
  • the sending module 2402 is configured to send, to the sending station, a response frame of the channel reserved frame, where the response frame is used to reserve at least two non-contiguous time segments, so that the non-target station that receives the response frame is received. Unable to transmit data during the at least two non-contiguous time periods;
  • the communication module 2403 is configured to communicate with the transmitting station during the reservation for at least two non-contiguous time periods.
  • the receiving module 2401 is specifically configured to receive a channel reservation frame sent by the sending station.
  • the sending module 2402 is specifically configured to send, to the sending station, a response frame of the one channel reserved frame, where the response The frame is used to reserve at least two non-contiguous time periods at a time;
  • the receiving module 2401 is specifically configured to receive at least two channel reserved frames sent by the sending station interval;
  • the sending module 2402 is specifically configured to send, to the sending station interval, a response frame of the at least two channel reserved frames, where at least one response frame is used to reserve a time period or once At least two non-contiguous time periods are reserved, wherein at least one response frame is sent within a time period reserved by the previous response frame and is used to reserve a time period or reserve at least two non-times at a time. For consecutive time periods, the reserved time periods are non-contiguous.
  • the at least two non-contiguous time periods are used to transmit uplink data, or both are used to transmit downlink data, or partially used to transmit uplink data and partially used to transmit downlink data.
  • the target site in this embodiment may be used in the technical solution of the fourth embodiment of the information sending method, and the implementation principle and the technical effect are similar, and details are not described herein again.
  • FIG. 25 is a schematic structural diagram of Embodiment 4 of a target station according to the present invention.
  • the target site 250 provided by this embodiment includes a processor 2501 and a memory 2502.
  • the target site 250 can also include a transmitter 2503 and a receiver 2504.
  • the transmitter 2503 and the receiver 2504 can be connected to the processor 2501.
  • the transmitter 2503 is configured to transmit data or information
  • the receiver 2504 is configured to receive data or information
  • the memory 2501 is configured to store execution instructions.
  • the processor 2501 communicates with the memory 2502.
  • the processor 2501 The execution instruction in the memory is used to perform the operation in the fourth embodiment of the above information transmission method.
  • the target site of this embodiment may be used to implement the technical solution of the fourth embodiment of the foregoing information sending method of the present invention.
  • the implementation principle and technical effects are similar, and are not described herein again.
  • FIG. 26 is a schematic structural diagram of Embodiment 5 of a transmitting station according to the present invention.
  • the sending station 260 provided in this embodiment includes: an indicating module 2601, a first sending module 2602, and a second sending module 2603.
  • the indication module 2601 is configured to send indication information, where the indication information is used to indicate a reserved time period;
  • the first sending module 2602 is configured to send data during the reserved time period
  • the second sending module 2603 is configured to send the release information in the reserved time period, where the release information is used to instruct the receiving station to release at least a part of the remaining time period of the time period.
  • the reserved time period is a continuous period of time or at least two non-contiguous periods of time.
  • the sending station of this embodiment can be used in the technical solution of the fifth embodiment of the information sending method, and the implementation principle and the technical effect are similar, and details are not described herein again.
  • FIG. 27 is a schematic structural diagram of Embodiment 6 of a transmitting station according to the present invention.
  • the transmitting station 270 provided by the example includes a processor 2701 and a memory 2702.
  • the transmitting site 270 can also include a transmitter 2703 and a receiver 2704.
  • the transmitter 2703 and the receiver 2704 can be connected to the processor 2701.
  • the transmitter 2703 is configured to transmit data or information
  • the receiver 2704 is configured to receive data or information
  • the memory 2701 is configured to store execution instructions.
  • the processor 2701 communicates with the memory 2702, and the processor 2701
  • the execution instruction in the memory is used to perform the operation in the fifth embodiment of the above information transmission method.
  • the transmitting station in this embodiment may be used to implement the technical solution in the fifth embodiment of the foregoing information sending method of the present invention.
  • the implementation principle and technical effects are similar, and details are not described herein again.
  • the transmitting station 280 provided in this embodiment includes: a first sending module 2801, a second sending module 2802, and a third sending module 2803.
  • the first sending module 2801 is configured to send a channel reservation frame after the contention channel succeeds, to reserve a time period for sending data to the target station;
  • the second sending module 2802 is configured to send data in a reserved time period
  • the third sending module 2803 is configured to send a channel release frame in a process of transmitting data in the time period, where the channel release frame is used to release at least a part of the time period in the remaining time period.
  • the first sending module 2801 is specifically configured to send a channel reservation frame after the contention channel succeeds, to reserve a continuous period of time;
  • the second sending module 2802 is specifically configured to send data in the continuous period of time reserved after the contention channel succeeds
  • the third sending module 2803 is specifically configured to send a channel release frame in a process of transmitting data in the reserved continuous period of time, where the channel release frame is used to release the reserved period of time At least a portion of the time period of the remaining time period of the segment;
  • the first sending module 2801 is specifically configured to send a channel reservation frame after the contention channel succeeds, to reserve at least two non-contiguous time periods;
  • the second sending module 2802 is specifically configured to send data in the at least two non-contiguous time periods reserved after the contention channel succeeds;
  • the third sending module 2803 is specifically configured to send a channel release frame during the process of sending data in the time period, where the channel release frame is used to release the reserved at least two discontinuous times At least a portion of the time period of the remaining time period of the interval.
  • the sending station of this embodiment may be used in the technical solution of the sixth embodiment of the information sending method, and the implementation principle and the technical effect are similar, and details are not described herein again.
  • FIG. 29 is a schematic structural diagram of Embodiment 8 of a transmitting station according to the present invention.
  • the transmitting site 290 provided by this embodiment includes a processor 2901 and a memory 2902.
  • the transmitting site 290 can also include a transmitter 2903 and a receiver 2904.
  • the transmitter 2903 and the receiver 2904 can be connected to the processor 2901.
  • the transmitter 2903 is configured to transmit data or information
  • the receiver 2904 is configured to receive data or information
  • the memory 2901 is configured to store execution instructions.
  • the processor 2901 communicates with the memory 2902, and the processor 2901
  • the execution instruction in the memory is used to perform the operation in Embodiment 6 of the above information transmission method.
  • the transmitting station of this embodiment may be used to perform the technical solution of the foregoing sixth embodiment of the information transmitting method of the present invention.
  • the implementation principle and technical effects are similar, and details are not described herein again.
  • FIG. 30 is a schematic structural diagram of Embodiment 1 of a receiving station according to the present invention.
  • the receiving station 300 provided in this embodiment includes: a first receiving module 3001 and a second receiving module 3002.
  • the first receiving module 3001 is configured to receive the indication information sent by the sending station, where the indication information is used to indicate a reserved time period;
  • the second receiving module 3002 is configured to receive, in the reserved time period, the release information sent by the sending station, where the release information is used to indicate that the receiving station releases the remaining time period of the time period. At least part of the time period.
  • the reserved time period is a continuous period of time or at least two non-contiguous periods of time.
  • the receiving station in this embodiment may be used in the technical solution of the seventh embodiment of the information sending method, and the implementation principle and the technical effect are similar, and details are not described herein again.
  • FIG. 31 is a schematic structural diagram of Embodiment 2 of a receiving station according to the present invention.
  • the receiving station 310 provided in this embodiment includes a processor 3101 and a memory 3102.
  • the receiving station 310 can also include a transmitter 3103 and a receiver 3104.
  • the transmitter 3103 and the receiver 3104 can be connected to the processor 3101.
  • the transmitter 3103 is configured to transmit data or information
  • the receiver 3104 is configured to receive data or information
  • the memory 3101 is configured to store execution instructions.
  • the processor 3101 communicates with the memory 3102.
  • the processor 3101 The execution instruction in the memory is used to perform the operation in the seventh embodiment of the above information transmission method.
  • the receiving station of this embodiment may be used to implement the technical solution of the foregoing seventh embodiment of the information sending method of the present invention. The implementation principle and technical effects are similar, and details are not described herein again.
  • FIG. 32 is a schematic structural diagram of Embodiment 3 of a receiving station according to the present invention.
  • the receiving station 320 provided in this embodiment includes: a receiving module 3201 and a releasing module 3202.
  • the receiving module 3201 is configured to receive, in a reserved time period, a channel release frame sent by the sending station, where the channel release frame is used to release at least a part of the remaining time period;
  • the release module 3202 is configured to release at least a portion of the remaining time periods according to the channel release frame.
  • the receiving module 3201 is specifically configured to receive, in a reserved period of time, a channel release frame sent by the sending station;
  • the release module specific 3202 is configured to release at least a part of the remaining time periods of the reserved consecutive time period according to the channel release frame;
  • the receiving module 3201 is specifically configured to receive, in the reserved at least two non-contiguous time periods, a channel release frame sent by the sending station;
  • the releasing module 3202 is specifically configured to release at least a part of the remaining time periods of the reserved at least two non-contiguous time periods according to the channel release frame.
  • the receiving station in this embodiment may be used in the technical solution of the eighth embodiment of the information sending method, and the implementation principle and the technical effect are similar, and details are not described herein again.
  • FIG. 33 is a schematic structural diagram of Embodiment 4 of a receiving station according to the present invention.
  • the receiving station 330 provided in this embodiment includes a processor 3301 and a memory 3302.
  • the receiving station 330 can also include a transmitter 3303 and a receiver 3304.
  • the transmitter 3303 and the receiver 3304 can be connected to the processor 3301.
  • the transmitter 3303 is configured to send data or information
  • the receiver 3304 is configured to receive data or information
  • the memory 3301 is configured to store execution instructions.
  • the processor 3301 communicates with the memory 3302, and the processor 3301
  • the execution instruction in the memory is used to perform the operation in the eighth embodiment of the above information transmission method.
  • the receiving station of this embodiment may be used to implement the technical solution of the eighth embodiment of the foregoing information sending method of the present invention.
  • the implementation principle and technical effects are similar, and details are not described herein again.
  • the aforementioned program can be stored in a computer Read in the storage medium.
  • the steps including the foregoing method embodiments are performed; and the foregoing storage medium includes: a medium that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente invention concerne, dans certains modes de réalisation, un procédé et un appareil d'envoi d'informations. Le procédé d'envoi d'informations de la présente invention comporte les étapes suivantes: une station émettrice participe à une concurrence pour des canaux; après que la station émettrice a participé avec succès à la concurrence pour les canaux, la station émettrice émet des informations d'indication, les informations d'indication étant utilisées pour indiquer qu'une station de réception n'amorce pas activement une transmission de données dans au moins deux segments temporels non consécutifs; et la station émettrice émet des données dans lesdits au moins deux segments temporels non consécutifs. Au moyen des modes de réalisation de la présente invention, des séquences temporelles non consécutives multiples sont réservées de façon souple dans certains scénarios où des données ne sont pas émises consécutivement, économisant ainsi une ressource de canaux.
PCT/CN2013/090431 2013-12-25 2013-12-25 Procédé et appareil d'envoi d'informations Ceased WO2015096065A1 (fr)

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PCT/CN2013/090431 WO2015096065A1 (fr) 2013-12-25 2013-12-25 Procédé et appareil d'envoi d'informations
CN201380081853.6A CN105874847B (zh) 2013-12-25 2013-12-25 信息发送方法及装置
US15/170,670 US20160295612A1 (en) 2013-12-25 2016-06-01 Information sending method and apparatus

Applications Claiming Priority (1)

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PCT/CN2013/090431 WO2015096065A1 (fr) 2013-12-25 2013-12-25 Procédé et appareil d'envoi d'informations

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US15/170,670 Continuation US20160295612A1 (en) 2013-12-25 2016-06-01 Information sending method and apparatus

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CN105874847B (zh) 2019-10-25
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